I've been making paddles as a hobby, usually just carving them out of single blank of wood (no bends or bent shafts on these). I am now trying to (expand my skill set to) make laminated paddles and have bought some balsa to add into the blades (along with ash, white cedar and red cedar). Anybody know if there will be a failure between the laminations of the balsa with the other woods if I don't add fiberglass, kevlar or carbon over the blade? Or should I just stay with using the laminations of the other harder woods?